<script language ="javascript" type="text/javascript">
function checkjs(){
if(document.getElementById("check").checked != true){
  document.getElementById("check").checked=false;
  open("baidu.com");
}else{
  document.getElementById("check").checked=true;
  open("sina.com");
}
}
</script>  

<style>
body {  
  background: #f5f4f2;
}

H1,H2 {
  color:  #679630;
}

H1,H2 {
  padding-left: 28px;  
}

H1 {
  font-size: 20px;  
}

H2 {
  font-size: 15px; 
}

.subtitle {
  font-size: 18px;
}

.context {
  padding-top: 0px;
  padding-bottom: 5px;
  padding-left: 5px;
  padding-right: 5px;
  font-size: 15px;
  color:  #2f4c6e;
}

.sub {
  background:  #e4e4e4;
  font-size:  18px;
  color:  #939393;  
  padding-left: 28px;
  padding-top:  8px;
  padding-bottom:  8px;
}

.jiezhongbox {  
  position: absolute; padding: 0px; margin: 0px; right: 28px; top: 48px;
}

.jiezhong {
  font-size: 15px;
  color:  #2f4c6e;
}
</style>